skeleton for crossfade edge dragging

git-svn-id: svn://localhost/ardour2/branches/3.0@12235 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 22 insertions, 0 deletions

diff --git a/gtk2_ardour/editor_drag.h b/gtk2_ardour/editor_drag.h
index 0d457a39d9..3c33e4de48 100644
--- a/gtk2_ardour/editor_drag.h
+++ b/gtk2_ardour/editor_drag.h
@@ -972,5 +972,27 @@ private:
 	bool _nothing_to_drag;
 };
 
+/** Drag of one edge of an xfade
+ */
+class CrossfadeEdgeDrag : public Drag
+{
+  public:
+	CrossfadeEdgeDrag (Editor*, AudioRegionView*, ArdourCanvas::Item*, bool start);
+	~CrossfadeEdgeDrag ();
+
+	void start_grab (GdkEvent*, Gdk::Cursor* c = 0);
+	void motion (GdkEvent*, bool);
+	void finished (GdkEvent*, bool);
+	void aborted (bool);
+	
+	bool x_movement_matters () const {
+		return false;
+	}
+
+  private:
+	AudioRegionView* arv;
+	bool start;
+};
+
 #endif /* __gtk2_ardour_editor_drag_h_ */